From: Joel Koltner on
"Greg Hanson" <greghanson(a)prograde.com> wrote in message
news:4c16de29.15315750(a)news.tpg.com.au...
> OK, but the commercial audio editing software I use (CoolEdit) only
> generates a stereo signal. If I open a second instance of it, how do I
> force it to address the second soundcard?

Not being a Cool Edit user, I don't know off-hand, but Cool Edit does claim to
support multiple sound cards, so a search through the help files or just the
menu options should be revealing.

Note that you probably should prefer a single audio card over several if your
goal is to keep everything in lock-step sync: If you use multiple cards,
they'll likely each have their own clock generators that will be ever so
slightly different in frequency and hence the audio output will slowly get out
of sync unless your software is very much on top of this and can insert or
delete samples to "fix" it (I'd be surprised if most software had such an
option...)

> Another respondent mentioned 4 track recorders. My associate Ken (the
> OP) said he looked into these and, while they record 4 channels for
> mixing purposes, only 2 can be output, as a conventional stereo
> signal. At least for the lower cost models examined.

Most soundcards these days support 5.1 audio, so perhaps you could just use
front L+R and rear L+R for your four outputs?

---Joel